Use separate settings for custom icons for Windows/Linux/MacOS

[mallowigi]

Discussed in #254

^{Originally posted by SergeyMaltsev December 23, 2021}
Describe the bug

When I use shared JetBains configuration via git settings repository I have problems with custom Associations for my icons paths.
For Windows icon path is something like C:\Users\User\icons\... for Mac it could be ~/icons/..., same for Linux.
It resolves in IDE plugin crash.

To Reproduce

1. Create a shared settings repository and setup custom icons in Windows (for example)
2. Launch IDE on MacOS or Linux
3. Receive an error on IDE start

java.io.FileNotFoundException: C:\Users\User\icons\idea-types\js.svg (No such file or directory)
	at java.base/java.io.FileInputStream.open0(Native Method)
	at java.base/java.io.FileInputStream.open(FileInputStream.java:219)
	at java.base/java.io.FileInputStream.<init>(FileInputStream.java:157)
	at java.base/java.io.FileInputStream.<init>(FileInputStream.java:112)
	at icons.AtomIcons.loadSVGIcon(AtomIcons.kt:107)
	at icons.AtomIcons.loadIconWithFallback(AtomIcons.kt:111)
	at com.mallowigi.icons.providers.DefaultFileIconProvider.getIcon(DefaultFileIconProvider.kt:53)
	at com.mallowigi.icons.providers.AbstractFileIconProvider.loadIcon(AbstractFileIconProvider.kt:96)
	at com.mallowigi.icons.providers.AbstractFileIconProvider.getIconForAssociation$lambda-0(AbstractFileIconProvider.kt:88)
	at java.base/java.util.Optional.map(Optional.java:265)
	at com.mallowigi.icons.providers.AbstractFileIconProvider.getIconForAssociation(AbstractFileIconProvider.kt:88)
	at com.mallowigi.icons.providers.AbstractFileIconProvider.findIcon(AbstractFileIconProvider.kt:69)
	at com.mallowigi.icons.providers.AbstractFileIconProvider.getIcon(AbstractFileIconProvider.kt:52)
	at com.intellij.util.PsiIconUtil.getProvidersIcon(PsiIconUtil.java:21)
	at com.intellij.ide.FileIconPatcherImpl.getIcon(FileIconPatcherImpl.java:37)
	at com.intellij.util.IconUtil.getProvidersIcon(IconUtil.java:222)
	at com.intellij.util.IconUtil.computeFileIcon(IconUtil.java:155)
	at com.intellij.openapi.fileEditor.impl.EditorsSplitters.lambda$updateFileIconAsynchronously$7(EditorsSplitters.java:430)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.insideReadAction(NonBlockingReadActionImpl.java:521)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$attemptComputation$3(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.ApplicationImpl.tryRunReadAction(ApplicationImpl.java:1078)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runInReadActionWithWriteActionPriority$0(ProgressIndicatorUtils.java:78)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runActionAndCancelBeforeWrite(ProgressIndicatorUtils.java:161)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.lambda$runWithWriteActionPriority$1(ProgressIndicatorUtils.java:118)
	at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:57)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:183)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:705)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:647)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:63)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:170)
	at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:57)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runWithWriteActionPriority(ProgressIndicatorUtils.java:115)
	at com.intellij.openapi.progress.util.ProgressIndicatorUtils.runInReadActionWithWriteActionPriority(ProgressIndicatorUtils.java:78)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.attemptComputation(NonBlockingReadActionImpl.java:486)
	at com.intellij.openapi.application.impl.NonBlockingReadActionImpl$Submission.lambda$transferToBgThread$1(NonBlockingReadActionImpl.java:407)
	at com.intellij.util.concurrency.BoundedTaskExecutor.doRun(BoundedTaskExecutor.java:216)
	at com.intellij.util.concurrency.BoundedTaskExecutor.access$200(BoundedTaskExecutor.java:27)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.execute(BoundedTaskExecutor.java:195)
	at com.intellij.util.concurrency.BoundedTaskExecutor$1.run(BoundedTaskExecutor.java:187)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665)
	at java.base/java.security.AccessController.doPrivileged(Native Method)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665)
	at java.base/java.lang.Thread.run(Thread.java:829)

Expected Behavior

No error should occur.
I suppose plugin should have separate settings for icons based on OS.
Best If I could set root folder per OS and Icons Associations would have relative paths to not recreate all from scratch for each OS.

Environment

• OS (Windows, Linux, Mac)
• IntelliJ Product: any
• Plugin version: 50.2.0

Screenshots